Trough



L. D. HAG ENBOOK Jan. 12, 1954 TROUGH 3 Sheets-Sheet 1 Filed Dec. 5,1950 jirvenzor .ZqyflffayenZook .izforney in I is E t)! ll Jan. 12, 1954L. D. HAGENBOOK TROUGH 3 Sheets-Sheet 2 Filed Dec. 5, 1950 fnvenzorjqyfl jzigyenook 9W S SW NW m m RN Q Jan. 12, 1954 H HAGENBOQK THOUGH 3Sheets-Sheet 3 Filed Dec. 5, 1950 In were Zoi" L y flffayenaO PatentedJan. 12, 1954 UNITED STATES PATENT OFFICE TRoUGH" my D. Hagenbook;Chicago, 111., assignor' to Goodman Manufacturing Company, Chicago,111., a corporation of'Illino'is Application December 5, 1950; SerialNo. 199,327"

"caused by wide variations temperatures of the material-being carried-inthe-trough from" tim to time:

A further object is to provide an improved trough"structureforminimizingthe effect of expansion and contraction upon the main loadcarryi'ngelements of" the trough under varying temperature conditions.

Other objects and advantages of theinvention will appear fromtimetb-time as the following de scription proceeds.

The inventionmay best be understood by reference'to the accompanyingdrawings; inwhich:

Figure 1 is a side view of a shaker conveyor pan line-employing oneembodiment of the preseht invention;

Figure 2 is a plan-view-of Figure 1; t Figure 3" is a fragmentaryenlarged View of Figure 1, partly in longitudinal section;

Figure 4*i's-a cross-sectional View of Figure-1 taken along lined-4 I MFigure '5" is'a' fragmentary plan View of Figure3 showing one means forsealing the jointsbetween adj oining section's;

Figure 6 is an enlarged cross secticnal view of Figure?) taken alongline9-5;

Figure 7= is an enlarged. fragmentary perspective view ofone formofthesealingmember;

Figure 8' is a perspective'view" of one trough section; v I

Figure Qis a cross=sectional view of Figure 3 taken along line 9 -9;

Figure 10 is a fragmentary longitudinal sec tional View of'Figu're"9takenialong line Ni -HY;

Figure 11 is a section" of Figure 10 taken along linel|- II. I HReferring now to details ofthe embodiment of theinvention illustratedfinthedrawings; Figure 1 is a view in side elevation of a portion of 'a conveyor trough line, indicated generally at iii; and

with a shaker drivemechani'sm, inclicatedgener ally at H,-disposed'henath the trough positionltol'impart a shaking or vibratoryfeeding movement thereto, The general arrangeiiientof the trough andit'sshakih'g mechanism may he the same as has heretofore beenviidlyusedin transporting loo'se materials with af so'fl-called" hakermotion, Wh'erein'tiie shakermeehamsm' W 2 is connec'ted to the troughline in ash? pitmans l2",- |-2- so as to impart a reciprocal movement tothe latter of variable acceleration in opposite (iirections, therebycausing the materialon; the" trough to be moved in onedirectiontherealon-g.

The trough line #0 consists essentiallyof a pair of laterally spacedside frame members 15; It

which extend the full length of the trough line and comprise asubstantially rigid structural framefor the trough, and a plurality ofindi vidual pan sections it; 6 which are mounted on and connected tothe'side frame members I5 in such a manner as to permit eridwiseexpansion and contraction of said pa1isections-indepe11d ently of eachother and of the side frame members.

In the form shown herein, the side frame meni bers l5, l5 consist ofiangle bars with upper" legs l1 and lower legs l8 disposed substantiallyat" right angles to each other'but with the two legs tending the fulllength of the conveyor 01'' they may be madeup of a pluralit'yo'fsectional lengths spliced or otherwise secured together at abutting endsin any suitable manner to provide ineffect continuous substantiallyrigid load-carrying ele'-- ments=extending the full length ofthe panlirie along opposite sides thereof.

The side frame members are tied together transversely at suitably spacedintervals by tie bars 20, 2B1 Afsshov'vn herein, these tiebars' arefastened tothe' ends of the lower legs [8, [3 of said side frame membersas by Welding. At tachjed to the under I faces "of each; of thetie"b'ars 2a: is longitudinally disposed C a nel; atter tr e full lengthof the pan line. Figure 1; s'oirie of the standards 25" may be mountedon extended frariiesflfi' and"zTconnected at o posite ends to the"shaker mechanism ll," Whileother standards 25 may be mounted eibii--hon'zontan disposed haseniemhe r's 2t;

connection. In the form shown herein, the con-- necting means consistsof a plurality of bolts 35, herein three in number, passing outwardlythrough the upper legs I? of the side frame members l5 and fittingsnugly through bolt holes 36,

36 formed along the flanges 32, 32 of said pan section [6 adjacent theend of the latter that is fastened directly to the side frame members15. The bolts 35 have heads 3'! engaging the outer faces of theproximate flanges 32 of the lower pan section l6. The heads 37 also havesuperimposed retaining plates MJ, 43 integral therewith for purposes tobe hereinafter described. Nuts 38, threaded on the inner ends of thebolts 35, hold the proximate flanges 32 of the lower pan section I6firmly against the upper faces of the legs ll of the side frame memberi5, as shown in Figures 9 and 11.

The opposite or right-hand end of the pan section shown in Figure 8 ismounted in the pan line 10 so that it nests in longitudinally slidingrelation within and above the proximate end of the next adjacent pansection it. For instance, by reference to Figure 3, it will be seen thatthe pan section l6, shown toward the left side of this figure, has itsright end nested in and above the left end of the next or right-hand pansection 16 shown toward the right end of this figure. Holes 39, 39 areprovided in the flanges 32 of the left pan considerably larger than theholes 33, 36 in the right-hand pan, and, which register with the heads31 of the bolts 35 which secure the right-hand pan section to the sideframe members [5. The holes 39, 39 just mentioned are sufficientlylarger than the heads 3! to permit considerable flexibility oflongitudinal movement between the lapped portions of the rightandleft-hand pan sections. Retaining plates 48, @9, formed integral withthe heads 3? and extending laterally above as previously mentioned, aresubstantially larger in diameter than the enlarged holes 39 of theoverlapping pan section, so as to retain the end of the latter pansection against vertical displacement with respect to the side framemembers.

It will now be understood that, by reason of the fastening means abovedescribed, each of the pan sections i6 is individually anchored at oneend to the side frame members but has its opposite end nested in andabove the end of the next adjacent pan section, with the fastening meansfor the next pan section also arranged to hold the relatively free endof the first pan section against vertical displacement in the pan linebut permitting limited longitudinal sliding or telescoping adjustmentbetween the lapped portions of the two pans, as may be required duringexcessive expansion and contraction of the several pan sections.

The lapped joints between adjoining pan sections l6 are preferablysupported on the tie bars 20, to strengthen the pan line as a whole atthese points.

It will also be observed from Figures 5, 6, '7 and 8 that each of thepan sections [6 is provided near its normally anchored end with a pairof transverse ridges 45, 45 formed transversely of the bottom plate 39thereof, between which ridges is disposed a resilient or deformablesealing strip 46, herein consisting of a coil of wire screen, as shownin Figure 7. Other heat-resistant, de-' formable sealing material suchas asbestos rope may be used for the sealing strip. Said sealing stripextends slightly above the level of the trans-- verse ridges 45, 45 inposition to be engaged by the under face of the bottom plate 30 of theadjacent overlapping pan section, in all permissible positions ofexpansion and contraction of the two lapped ends of the adjacent pans.It will be observed that, when assembled, the side walls 31 of each panoverlapping portion are seated in material-sealing relationship upon thecorresponding side walls of the adjoining, underlapping, pan portion.The only portions needing a sealing strip therefore, are the bottom,lapping portions of the pans.

The sealing strip 46 serves to minimize the escape of fine materialwhich otherwise might find its way between the lapped joints of the pansections.

Any suitable means may be provided for connecting the pitmans i2 of theshaker mechanism H to the trough line H). In the form shown in Figure 4,the ends 59 of the pitmans I2 are connected by ball-and-socket joints 5|at opposite sides of the pan line to a crosstree 52 which, in

turn, is pivotally mounted on an upright stud 53 forming part of anelongated drive bracket 54. Said drive bracket 54 may be longitudinallyextended to connect With the side frame members 15 for a considerablelength of the pan line; as for instance in Figure 1, said bracketextends about the length of two pan sections i6.

Although the novel form of trough structure has been described inconnection with a shaker conveyor, for which it is particularly adapted,it will be understood that the same structure can also be employed ininclined chutes and the like.

The use and operation of the device may now be described as follows:

The pan line 19 is set up for reciprocal movement on the supportingrollers 22 and with the shaker mechanism i i operatively connected withthe side frame members [5 of the trough line. The pan sections Hi, 16are connected to the continuous side frame members IS with one end ofeach individual pan section positively secured or anchored to the sideframe members, and with the opposite ends of each pan section having alapped joint with the next section, so as to permit limited longitudinalsliding or telescoping movement between adjacent pan sections. Theshaker motion is preferably imparted to the pan line in the direction tomove the material along the pan line from left to right, so that thematerial will ride over the lapped joints without obstruction.

The pan sections are preferably made of relawithout causing any bucklingor other distortion due to wide variations in temperature which occurfrom time to time and at different points along the pan line. Suchtemperature variations will usually affect the pan sections [6, is morethan the side frame members I5, since said pan sections are made oflighter material, and also are brought into more direct contact with thematerial being transported along the conveyor. The pan sections are soarranged that they readily accommodate themselves to such expansion orcontraction at various localized points along the pan line as may berequired.

The pan sections are also connected along their flanged upper edges tothe side frame members so that much of the heat efiective directly onthe pan sections will tend to be dissipated before it reaches the sideframe members by conduction. As a result, the side frame members are notordinarily subjected to the same extremes of heat as the individual pansections.

Although I have shown and described certain embodiments of my invention,it will beunderstood that Ido not wish to be limited to the exactconstruction shown and described, but that various changes andmodifications may be made without department from the spirit and scopeof the invention as defined in the appended claims.

I claim:

1. In a trough structure, an elongated substantially rigid supportingframe, and a plurality of pan sections mounted in load-carrying sequencealong said frame, means for positively anchoring a relatively limitedarea of each of said pan sections in substantially rigid relation tosaid frame, with the remaining area of such pan section free forlongitudinal expansion or contraction relative to said frame, and with arelatively free end of such pan section in lapped relation to anadjoining pan section.

2. A trough structure in accordance with claim 1, wherein successive pansections are each anchored adjacent one end to the frame and with theopposite relatively free end in overlapping relation with the anchoredend of the next pan section.

3. A trough structure in accordance with claim 1, wherein each pansection has generally upright side walls and the frame includes twolaterally spaced side frame members disposed along opposite sides of aplurality of said pan sections and having the latter anchored theretoalong the upper edges of their side walls.

4.. A trough structure in accordance with claim 3, wherein the framealso includes a plurality of longitudinally disposed cross membersconnecting said side frame members in supporting relation below thelapped joints between adjoining pan sections.

5. A trough structure in accordance with claim 3, wherein the side wallsof the trough sections each have outwardly extending flanges along theirupper edges which are anchored to the side frame members near one end ofsuch trough section and are secured adjacent their opposite ends forlimited longitudinal slidable movement rela tive to similar flanges onthe adjoining pan section and to said side frame members.

LOY D. HAGENBOOK.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 2,268,638 Bigelow Jan. 6, 1942 2,299,005 Bigelow Oct. 13, 19422,333,338 Rapp Nov. 2, 1943 2,523,293 Hagenbook Sept. 26, 1950

